What is gene expression, Biology

Assignment Help:

What is Gene Expression ?

Gene expression is the process by which a gene is activated to produce a certain protein. Cells are able to respond to changes in the environment in two ways: 1.) by controlling the production of enzyme molecules that cause expression of a gene; and 2.) by controlling the activities of enzymes that are already present through the use of feedback mechanisms.

The control mechanism for gene expression is very different in prokaryotic cells than in eukaryotes.
The way in which a specific gene expresses itself is of particular interest to scientists. Many diseases have been found to be genetically-based. Therefore, the ability to control the form and behavior of a cell or an organism would prove especially useful in the prevention and cure of disease.

One area that holds real promise in the near future is in the cloning of new tissues or organs to replace those that have become injured or diseased. Cells from the body can be used to produce clones because each cell contains a full complement of DNA. Cloning involves removal of a cell from an organism, and then providing that cell with all of the nutrients, gases, and physical conditions necessary for its growth, development, and reproduction.

The larger question is: since each and every cell has the same DNA information, what are the determining factors that cause a newly formed skin cell to form the specialized structures that enable it to perform the functions of skin, rather than, say, the types of protein structures that characterize muscle cells?

 


Related Discussions:- What is gene expression

Fats, what are fats

what are fats

What is microtubule assembly, Microtubule assembly: A) generally originates...

Microtubule assembly: A) generally originates in the centrosome. B) Occurs only during mitosis. C) Occurs randomly throughout the cell. D) Is regulated by myosin. E) Is inhibited d

minerals, Minerals Minerals are chemical elements needed by the body ei...

Minerals Minerals are chemical elements needed by the body either to help form bodily structures or to facilitate chemical reactions. Dietary minerals are divided into two categ

How to produce organic material from inorganic substances, What are the pro...

What are the processes that autotrophic beings use to produce organic material from inorganic substances? Autotrophic beings make organic material by photosynthesis or by chemo

When to use the term 2'' carbon, When do you use the term 2' carbon and whe...

When do you use the term 2' carbon and when do you use 2 carbons on a molecular structure? I need examples please!

True about microbial metabolism, which of the following is most likely to b...

which of the following is most likely to be true of microbial metabolism? 1)Acetyl-CoA is converted directly into 2 ATP 2)The energy from 2 ATP is necessary to drive the electron t

Which are the plant tissues, Which are the plant tissues responsible for th...

Which are the plant tissues responsible for the supporting of the plant? The plant supporting tissues are the collenchyma and the sclerenchyma. The collenchyma is made of li

Does the environment exert an influence on the phenotype, Does the environm...

Does the environment exert an influence on the phenotype? The phenotype may be altered (compared to the original situation conditioned by its genotype) by nongenetic means, ins

Endocytosis, i have to make assignment on it. can u help me

i have to make assignment on it. can u help me

Lab safety, Why should you not apply cosmetics while doing a lab experiment...

Why should you not apply cosmetics while doing a lab experiment in class?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd